Abstract: In view of problems that interface has diversity and data specifications are inconsistent in construction of current industry informatization integration project, the paper researched enterprise service bus technology, analyzed advantages and disadvantages of enterprise application integration, service-oriented architecture and enterprise service bus, and introduced workflow and key technologies of enterprise service bus. Enterprise service bus technology enables communication and integration between different services, provides services management tools and monitoring tools suite based on metadata, and provides specifications for data sharing and integrated business applications of informatization platform.